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Fencer Intel
medium 4.3

CVE-2010-0421 json

Array index error in the hb_ot_layout_build_glyph_classes function in pango/opentype/hb-ot-layout.cc in Pango before 1.27.1 allows context-…

published 16y ago modified 4mo ago also EUVD-2010-0452

cvss
4.3
version 2.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
2.4%
EPSS 2.4% chance of exploitation in 30 days, percentile 84%
public exploits
0
none known

Summary

Array index error in the hb_ot_layout_build_glyph_classes function in pango/opentype/hb-ot-layout.cc in Pango before 1.27.1 allows context-dependent attackers to cause a denial of service (application crash) via a crafted font file, related to building a synthetic Glyph Definition (aka GDEF) table by using this font's charmap and the Unicode property database.

Patch / fix

  • pango1.0 Debian 14, Debian 13, Debian 12 1.26.2-1

debian advisories DEBIAN-CVE-2010-0421

  • pango RHEL 3 1.2.5-10
  • pango RHEL 4 1.6.0-16.el4_8
  • pango RHEL 5 1.14.9-8.el5
  • evolution28-pango RHEL 4 1.14.9-13.el4_8

red hat advisories RHSA-2010:0140

Is CVE-2010-0421 in your stack? Fencer shows which of your repositories are affected as soon as an advisory lands, and opens the fix as a pull request.

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Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2010-0421 updated cvss 4.3

libpangoft2 segfaults on forged font files

  • Red Hat Desktop version 3 pango 1.2.5-10 Red Hat Enterprise Linux (v. 5 server) pango 1.14.9-8.el5 Red Hat Enterprise Linux AS version 3 pango 1.2.5-10 Red Hat Enterprise Linux AS version 4 pango 1.6.0-16.el4_8, evolution28-pango 1.14.9-13.el4_8 Red Hat Enterprise Linux Desktop (v. 5 client) pango 1.14.9-8.el5 Red Hat Enterprise Linux Desktop version 4 pango 1.6.0-16.el4_8, evolution28-pango 1.14.9-13.el4_8
    +5 more products
    Red Hat Enterprise Linux Desktop Workstation (v. 5 client) pango 1.14.9-8.el5 Red Hat Enterprise Linux ES version 3 pango 1.2.5-10 Red Hat Enterprise Linux ES version 4 pango 1.6.0-16.el4_8, evolution28-pango 1.14.9-13.el4_8 Red Hat Enterprise Linux WS version 3 pango 1.2.5-10 Red Hat Enterprise Linux WS version 4 pango 1.6.0-16.el4_8, evolution28-pango 1.14.9-13.el4_8
    fixed: vendor fix RHSA-2010:0140

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

Exploit prediction

2.45% chance of exploitation in the next 30 days, higher than 84% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by version score vector
NVD 2.0 4.3 AV:N/AC:M/Au:N/C:N/I:N/A:P

Classification

Weakness
  • CWE-119 Improper Restriction of Operations within the Bounds of a Memory Buffer

References

Sources

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.